Dust-cap and solar eyepiece for telescopes.



PATENTED APR. 24, 1906.

v F. B. WARNER. DUST CAP AND SOLAR EYEPIEGE FOR TBLBSCOPES.

WITNESSES:

A TTOHNE YS UNITED STATES PATEN T OFFICE.

FRANKLIN B. WARNER, OF NEWV YORK, N. Y.

DUST-CAP AND SOLAR EYEPIEOE FOR TELESCOPES- Patented April 24, 1906.

Application filed December 19,1905. Serial No. 292,413.

To n/U whont it TVLCIJ/ concern:

Be it known that I, FRANKLIN B. WVARNER, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county and State of New York, have invented a new and Improved Dust- Cap and Solar Eyepiece for Telescopes, of which the following is a full, clear, and exact description.

The invention relates to improvements in combined dust-caps and solar eyepieces for telescopes, the object being to provide a device of this character that may be manufac tured at a small cost.

I will describe a dust-cap and solar eyepiece for telescopes embodying my invention and then point out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding ures.

Figure 1 is a perspective view of a telescope I with a combined dust-cap and solar eyepiece embodying my invention thereon. Fig. 2 is a perspective vieW of the device, and Fig. 3 is a section on the line 3 3 of Fig. 2.

parts in all the fig- Referring to the drawings, 5 designates a telescope on which at the eye end the cap (5 is designed to be removably placed. This cap is of any suitable material and has a reentrant portion 7, and in this rentrant portion is an outwardly-extended tube 8, in which a lens 9, of colored glass, is placed. Obviously this cap is employed for protecting the eyelens from dust when the telescope is not in use in the usual manner, and the cap is to be used on the telescope when making observations of the sun;

Having thus described my invention, I claim as new and desire to secure by Letters Patent For a telescope, a cap for the eye end, the said cap having a rentrant portion, and a central outwardly-extended tubular member, and a colored lens in said tubular member.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANKLIN B. WARNER.

I/Vitnesses:

JNo. M. RITTER, C. R. FERGUSON. 

